This is the ESC used by F3 RacerCube but it can also be used with other flight controller. However, you may need to tailor the wiring part for your own flight controller.

Is this ESC 10A or 20A?
The version 1 of this ESC only support 10A. However, V2 has been upgraded to support 20A in 3S (4S maybe overheat). So basically it supports 10A in 4S and 20A in 3S Li-Po Battery.

BLHELI_S 10A ESC

Firmware: BLHELI_S

Voltage Input: 2-4S LiPo/2-4S HV LiPo

BEC: None

Current:

10A With 2-4S Battery (15A Peak @ 5 seconds)

20A With 2-3S Battery (more safe).

Size: 27x27mm

31*3.15mm Included Soldering Pads

Mounting: 20x20mm (M2.5 Hole)

Never try to drill the hole to make it 3mm as it will break the wiring inside the PCB and cause the ESC irreparable..

Weight: 3.6g

DSHOT, OneShot Supported

MOS: TPN2R703NL

MCU: SILABS EFM8BB21F16G

Package Included

1 x ESC

Note: M2 Nylon Spacers are used on these boards. So you may need to get some M2 size spacers and screws.

** Warning:The default firmware shipped with the board has been tested and configured by the factory in working condition (factory flashed the board with tested firmware manually via USB). You will be responsible for damage (or any part of function not working) if you flash your own firmware. So you are recommended to use the default firmware which shipped with the board. Thank you for your understanding.

** Warning:You must be very be careful when you do soldering on this ESC because it is small. All IC components on this board are tiny so the soldering iron/gun might damage the ICs if it is overheat. So you must have good soldering skill (fast & clean) to do this job properly.